# US 9,040,170 B2 · Electroluminescent device with quinazoline complex emitter

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- Number: US 9,040,170 B2
- Document ID: US9040170B2
- Status: Granted
- Kind: B2
- Application number: 11/289,023
- Filed: 2005-11-29
- Published: 2007-05-31
- Granted: 2015-05-26
- Earliest claimed: 2005-11-29
- Assignees: Global OLED Technology LLC
- Applicants: Joseph C. Deaton; Barbara B. Lussier
- Inventors: Joseph C. Deaton; Barbara B. Lussier
- Web page: https://patentgrep.com/patent/US9040170B2

## CPC

- H05B 33/14: characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source}
- C07F 15/0033: {Iridium compounds}
- C07F 15/0073: {Rhodium compounds}
- C09K 11/06: containing organic luminescent materials
- H10K 85/341: {Transition metal complexes, e.g. Ru(II)polypyridine complexes (H10K85/331 takes precedence)}
- H10K 85/342: {comprising iridium}
- C09K 2211/1044: containing two nitrogen atoms as heteroatoms
- C09K 2211/185: of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 50/155: comprising dopants
- H10K 50/165: comprising dopants
- H10K 50/171: {Electron injection layers}
- H10K 50/18: Carrier blocking layers
- H10K 50/81: Anodes
- H10K 50/82: Cathodes
- H10K 2101/10: Triplet emission
- H10K 2101/40: Interrelation of parameters between multiple constituent active layers or sublayers, e.g. HOMO values in adjacent layers
- H10K 2102/103: {comprising indium oxides, e.g. ITO}
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

An OLED device comprises a cathode, an anode, and located therebetween a light-emitting layer containing a host material and a tris-C^N-cyclometallated complex of Ir or Rh wherein at least one of the ligands comprises a substituted quinazoline moiety. The device provides useful emission and stability attributes.

## Claims

### Claim 1

An OLED device comprising a cathode, an anode, and located therebetween a light-emitting layer containing a host material and a tris-C^N-cyclometallated complex represented by Formula (2d):
wherein:
each d1 represents an independently selected substituent and s is 0-4;
each d2 represents an independently selected substituent and t is 0-4; and
d3 represents hydrogen or a substituent.

### Claim 2

A tris-C^N-cyclometallated complex is represented by Formula (2d):
wherein:
each d1 represents an independently selected substituent and s is 0-4;
each d2 represents an independently selected substituent and t is 0-4; and
d3 represents hydrogen or a substituent.

### Claim 3 (depends on 1)

The device of claim 1 wherein the host material comprises an aluminum complex.

### Claim 4 (depends on 3)

The device of claim 3 wherein the host comprises a material of Formula (4):
wherein:
each Ara and each Arb may be the same or different and each independently represents an aromatic group;
each Ra and each Rb may be the same or different and each independently represents a substituent group; and
n and m independently are 0-4.

### Claim 5 (depends on 1)

The device of claim 1 wherein the host material comprises a material of Formula (3):
wherein:
M1 represents Al or Ga;
R2 through R7 each independently represent hydrogen or a substituent group, and
L represents an aromatic group.

### Claim 6 (depends on 1)

The device of claim 1 wherein the host comprises a triaryl amine.

### Claim 7 (depends on 1)

The device of claim 1 wherein the host material comprises an aluminum complex and a triaryl amine.

### Claim 8 (depends on 1)

The device of claim 1 wherein the host material comprises a carbazole biphenyl compound.

### Claim 9 (depends on 8)

The device of claim 8 wherein the host material comprises 4,4′-N,N′-dicarbazole-biphenyl.

### Claim 10

The tris-C^N-cyclometallated complex